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Site Report: Galena AFS/Airport - AOC 023 (SS018) Waste Accum. Area


Site Name: Galena AFS/Airport - AOC 023 (SS018) Waste Accum. Area
Address: Galena Airport, Galena, AK 99741
File Number: 860.38.030
Hazard ID: 565
Status: Active
Staff: Dennis Shepard, 9074512180 dennis.shepard@alaska.gov
Latitude: 64.740267
Longitude: -156.957606
Horizontal Datum:WGS84


We make every effort to ensure the data presented here is accurate based on the best available information currently on file with DEC. It is therefore subject to change as new information becomes available. We recommend contacting the assigned project staff prior to making decisions based on this information.


Problems/Comments

Detected contaminants include chlorinated solvents, petroleum constituents, and pesticides. BTEX, diesel range organic, and trichloroethene all detected above cleanup levels in the surface and subsurface soil. No organized groundwater monitoring program exists for the site, however, monitoring wells in the vicinity have been far below cleanup levels for the contaminants of concern. Large contaminants plumes from nearby sites surround the site; Million Gallon Hill to the west, and the Building 1845/1700 to the northeast. Formerly Air Force Installation Restoration Program Site SS006. The site is located upgradient of the base drinking water supply wells. Drinking water well sampling in 2003 and 2004 has not detected contaminants above cleanup levels, and the main airport drinking water well has been protected by an air stripper since 1996. Potential receptors include on-base residents and temporary contractors working in the area. The site is assigned a HIGH overall risk on the Air Force Relative Risk Evaluation Worksheet dated 8/29/95. --Update 2011-- The April 2010 Preliminary Assessment identified this site as a candidate for the site inspection phase. In August 2010 a field sampling plan for site inspection was developed. AOC023 was identified as a candidate for the remedial investigation pathway. The goal of the remedial investigation pathway is to characterize the nature and extent of soil contamination both laterally and vertically. The target analytes being investigated are: GRO, DRO, RRO, VOC, 1,2 DCA, EDB, SVOCs, dioxane, PAHs, pesticides, PCBs, and metals. This site was also analyzed for possible analytes based on a 500ft radius from the site boundary. The target analyst list for this site was not modified based on this analysis because all analytes were already included in the list. Sampling during the 2010 field season was aimed at filling the data gaps in the known contamination areas, delineate the nature and extent of contamination, and to evaluate the degree to which the contamination is contributing to the underlying comingled groundwater plumes. 2010 sampling was implemented in accordance with the final field sampling plan, and in 2011 additional step-outs were approved to delineate the extent of petroleum and pesticide contamination. TCE is found through out sites at low levels, not indicative of a source area. A petroleum source area near a buried pipeline was also identified. SC investigation activities continue in 2011.



Action Information

Action Date Action Description DEC Staff
8/29/1995 Update or Other Action (Old R:Base Action Code = RI - Remedial Investigation). Action date used is the date of the Air Force Relative Risk Evaluation Worksheet, which indicates the site is in the RI phase. No Longer Assigned
2/21/1997 Site Added to Database Site added by Shannon and Wilson. See also Reckey 198831X127201. S&W
2/21/2003 Update or Other Action In 2003 work will be completed to characterize this site. Solvents have been detected in the groundwater near this site, but the source may be another area. Ann Farris
9/17/2003 Update or Other Action Staff received the Draft Remedial Investigation/Feasibility Study Work Plan for Galena Airport. Staff has begun review of the document. A comment resolution/technical project team meeting is scheduled October 2-3rd in Anchorage. This work plan is intended to address the many outstanding site characterization issues that were raised by Louden Tribal Council, the Environmental Protection Agency, and ADEC as well as the Remedial Process Optimization Evaluation completed in 2002. Ann Farris
4/19/2004 Meeting or Teleconference Held Staff participated in the 9th Galena Technical Project Team meeting on April 19th. The meeting was between representatives of the Air Force, Louden Tribal Council, City of Galena, Galena City School District, and the Alaska Department of Environmental Conservation. The primary objective of this meeting was to complete comment resolution on the the Draft Final Remedial Investigation/Feasibility Study Work Plan. The team did ultimately come to resolution on the work plan and the final version is expected out by mid-May. Ann Farris
8/30/2004 Meeting or Teleconference Held 11th Galena Technical Project Team in Anchorage. See the "Galena AFS - Sitewide" listing for more details. Colin Craven
10/21/2004 Meeting or Teleconference Held Galena RAB meeting. See the "Galena AFS - Sitewide" listing for more details. Colin Craven
11/5/2004 Meeting or Teleconference Held 12th Galena Technical Project Team in Anchorage. See the "Galena AFS - Sitewide" listing for more details. Colin Craven
11/19/2004 Meeting or Teleconference Held Attended a week long meeting in San Antonio, Texas to participate in the formulation of an outline for the Galena Airport and Campion Air Station Remedial Investigation/Feasibility Study (RI/FS). Colin Craven
1/12/2005 Update or Other Action Submitted comments to the Air Force to finalize the 2004 Site Recommendations for the upcoming Remedial Investigation report. The 2004 Site Recommendations were produced during the November 2004 meetings in San Antonio, Texas. Colin Craven
1/28/2005 Meeting or Teleconference Held Galena RAB meeting. See the "Galena AFS - Sitewide" listing for more details. Colin Craven
1/28/2005 Meeting or Teleconference Held 13th Galena Technical Project Team in Galena. See the "Galena AFS - Sitewide" listing for more details. Colin Craven
4/19/2005 Meeting or Teleconference Held 14th Galena Technical Project Team in Anchorage. See the "Galena AFS - Sitewide" listing for more details. Colin Craven
4/26/2005 Meeting or Teleconference Held Galena RAB meeting. See the "Galena AFS - Sitewide" listing for more details. Colin Craven
5/13/2005 Meeting or Teleconference Held 15th Galena Technical Project Team meeting in Galena. See the "Galena AFS - Sitewide" listing for more details. Colin Craven
6/9/2005 Meeting or Teleconference Held 16th Galena Technical Project Team in Anchorage. See the "Galena AFS - Sitewide" listing for more details. Colin Craven
7/20/2005 GIS Position Updated Updated the site location; interpolated from USGS quadrangle map. Colin Craven
8/29/2005 Update or Other Action The Air Force requested closure on the site based on samples collected during a geotechnical survey performed in the area, however, closure not possible due to the site due to the presence of BTEX, DRO, and TCE above cleanup levels with no documented removal or remedial action. The Air Force decided to have the Compliance program handle the Waste Accumulation Area, despite the former Installation Restoration Program listing of the site. Colin Craven
8/30/2005 Meeting or Teleconference Held 17th Galena Technical Project Team in Galena. See the "Galena AFS - Sitewide" listing for more details. Colin Craven
10/12/2005 Meeting or Teleconference Held Galena RAB meeting. See the "Galena AFS - Sitewide" listing for more details. Colin Craven
10/20/2005 Meeting or Teleconference Held 18th Galena Technical Project Team in Anchorage. See the "Galena AFS - Sitewide" listing for more details. Colin Craven
1/26/2006 Meeting or Teleconference Held 19th Galena Technical Project Team in Galena. See the "Galena AFS - Sitewide" listing for more details. Colin Craven
3/14/2006 Meeting or Teleconference Held 20th Galena Technical Project Team in Anchorage. See the "Galena AFS - Sitewide" listing for more details. Colin Craven
6/20/2006 Meeting or Teleconference Held 21st Galena Technical Project Team in Galena. See the "Galena AFS - Sitewide" listing for more details. Colin Craven
10/6/2006 Meeting or Teleconference Held 22nd Galena Technical Project Team meeting in Anchorage. See the "Galena AFS - Sitewide" listing for more details. Colin Craven
11/17/2006 Meeting or Teleconference Held 23rd Galena Technical Project Team meeting in Fairbanks. See the "Galena AFS - Sitewide" listing for more details. Colin Craven
1/18/2007 Meeting or Teleconference Held 24th Galena Technical Project Team meeting in Anchorage. See the "Galena AFS - Sitewide" listing for more details. Colin Craven
6/28/2010 Meeting or Teleconference Held TPT meeting, site discussed Fred Vreeman
8/1/2010 Report or Workplan Review - Other SC work plan reviewed Fred Vreeman
8/11/2010 Site Characterization Workplan Approved SC work plan approved Fred Vreeman
8/11/2010 Conceptual Site Model Submitted CSM submitted Amanda Loomis
9/1/2010 Site Visit Site visit, field work audit Amanda Loomis
4/15/2011 Report or Workplan Review - Other Step out Memo reviewed Fred Vreeman
4/30/2011 Update or Other Action Stepout Memo approved. Fred Vreeman
6/9/2011 Site Visit Site visit, field work audit Fred Vreeman
6/21/2011 Meeting or Teleconference Held TRIAD meeting, sampling data discussed. Fred Vreeman
7/8/2011 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 71544 name: auto-generated pm edit Galena AFS - Waste Accumulatn. Area Amanda Loomis
8/16/2011 Meeting or Teleconference Held TRIAD meeting held. DEC agrees that nature and extent investigation is complete. Fred Vreeman
5/15/2012 Report or Workplan Review - Other DEC received a Draft Remedial Investigation Results Report for AOC023. Dennis Shepard
7/19/2012 Report or Workplan Review - Other DEC provided review comments for the Draft Remedial Investigation report for AOC023. DEC expressed concern about the Risk Assessment methodology used to evaluate the site. Risk assessment issues resolution meetings are being planned. Dennis Shepard
8/1/2012 Meeting or Teleconference Held Risk assessment issues resolution meetings were held at DEC offices in Anchorage, Alaska. The site AOC023 risk assessment methodology was discussed. Dennis Shepard
8/1/2012 Meeting or Teleconference Held Risk assessment issues resolution meetings were held at DEC offices in Anchorage, Alaska. The site AOC023 risk assessment methodology was discussed. Issues requiring resolution require EPA weigh in on Exposure Point Concentration (EPC) calculations. Air Force agrees to resample some locations where Data Quality is questioned (surrogate recovery issues). Dennis Shepard
9/4/2012 Report or Workplan Review - Other Additional comments on Risk Assessment issues were provided. Dennis Shepard
11/6/2012 Report or Workplan Review - Other Air Force submitted resampling results and Technical Memo for Pesticides at AOC023. Dennis Shepard
11/8/2012 Meeting or Teleconference Held A meeting was conducted with DEC Staff and contractor Shannon and Wilson to identify all remaining data gaps in the site characterization for all Galena Sites including AOC023. Dennis Shepard
2/6/2013 Report or Workplan Review - Other ADEC received a Draft Final remedial investigation results report for the site. Dennis Shepard
3/13/2013 Report or Workplan Review - Other ADEC provided review comments and completed a backcheck of the Air Force response to comments for the Draft Final Remedial Investigation results report for Site AOC023 Dennis Shepard
3/13/2013 Report or Workplan Review - Other ADEC provided a letter of concurrence with recommendations from a Technical Memorandum concerning re-sampling of pesticides at four locations within the AOC023 site boundaries. ADEC had asked for the re-sampling due to quality control issues in the original laboratory results. Dennis Shepard
6/14/2013 CERCLA RI Report Approved The Alaska Department of Environmental Conservation (ADEC) received a Draft Remedial Investigation (RI) results report for Site AOC023, Former Galena FOL, on May 15, 2012. ADEC provided comments for the draft report on July 19, 2012 and sent some additional risk assessment comments on August 30, 2012. On February 6, 2013, ADEC received a response to comments (RTC) and a Draft Final RI results report for Site AOC023. ADEC reviewed the Draft Final RI results report and completed a backcheck of the RTC. ADEC provided comments for the Draft Final on March 13, 2013. In order to address ADEC concerns and to reach agreements on a path forward for the risk assessments at Galena RI Sites, a risk scoping meeting for the Former Galena FOL, Alaska was held from 20 to 21 March 2013 in Austin, Texas. An additional teleconference meeting was held on May 8, 2013 to discuss remaining issues for the report. An approval of the Draft Final Remedial Investigation (RI) results report was provided on June 14, 2013. Dennis Shepard
4/15/2014 Meeting or Teleconference Held A Technical Project Team meeting was held to meet the Air Force newly selected Performance Based Remediation Contractor for Galena. The 6.5 year remediation contract was awarded to Parsons Governmental Services (Parsons). The contract includes completing the risk assessments, remediation feasibility studies, proposed plans and record of decision for remedial investigations at 10 Sites (FT001, SS006, SS013, SS015, SS019, SS018/AOC023, SS022/B400, DP023/DSWD, OW024/OWS1833, and SS025). Dennis Shepard
3/4/2015 Risk Assessment Report Approved DEC approved the Human Health Risk Assessment, Waste Accumulation Area (Site AOC023), Former Galena Forward Operating Location (FOL), Alaska. Dennis Shepard
7/29/2015 Report or Workplan Review - Other DEC approved the Pipe Verification and Surface Tar Removal Work Plan, Former Galena Forward Operating Location (FOL), Alaska. Dennis Shepard
9/29/2016 CERCLA FS DEC approved for the Feasibility Study Report for Waste Accumulation Area AOC023(Site SS018), Dennis Shepard
10/20/2016 CERCLA Proposed Plan DEC approved the Proposed Plan Air Force Proposes Environmental Restoration Alternatives for Waste Accumulation Area (Site SS018) with Soil and Groundwater Impacts, Former Galena Forward Operating Location (FOL), Alaska. Dennis Shepard
10/26/2016 Meeting or Teleconference Held A restoration advisory board (RAB) meeting was held in Galena. Prior to the RAB meeting,Proposed plans were presented for sites Fire Protection Training Area (FT001), Waste Accumulation Area (SS018) and West Perimeter Road TCE Spill (SS025). Dennis Shepard
10/26/2016 Meeting or Teleconference Held A restoration Advisory board meeting was held in Galena Alaska to discuss the general and specific status of site investigations and cleanup at Galena. Dennis Shepard
8/3/2017 CERCLA ROD Approved Approval of the Record of Decision (ROD) for the Waste Accumulation Area. Jamie McKellar

Contaminant Information

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